Objective:To construct a series of cysteine mutant forms of Flag-α4,and to identify sites ofα4glutathionylation.Methods:Cys-to-Asp Flag-α4mutant plasmids were generated by site directed mutagenesis.Then Flag-α4mutant proteins were accumulated through anti-Flag Pulldown assay.Levels of glutathionylation ofα4were measured by glutathionylation assay.Results:We generated six plasmids as follows Flag-α4 81 Asp,Flag-α4 85 Asp,Flag-α4 278 Asp,Flag-α4 717 Asp,Flag-α4 767 Asp,Flag-α4 828 Asp.We found that all of the...